Sleep Paralysis and it's three hallucinations. 1. Incubus - This is the feeling of weight or pressure on the chest while being choked or suffocated 2. Intruder in the Bedroom - Traditionally some kind of horrific presence or spirit which is then personalized and interpreted through visual, tactile, and kinetic cues 3. Vestibular-Motor Hallucinations - that’s the feeling of dissociation with the body or an out-of-body experience